Remove now-unnecessary dbghelp.dll suitable for XP

base/BUILD.gn

 # Copyright (c) 2013 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # HOW TO WRITE CONDITIONALS IN THIS FILE
 # ======================================
 #
 # In many other places, one would write a conditional that expresses all the
 # cases when a source file is used or unused, and then either add or subtract
 # it from the sources list in that case
@@ skipping 47 matching lines @@
 if (is_win) {
   # This is in a separate config so the flags can be applied to dependents.
   # ldflags in GN aren't automatically inherited.
   config("base_win_linker_flags") {
     ldflags = [
       "/DELAYLOAD:cfgmgr32.dll",
       "/DELAYLOAD:powrprof.dll",
       "/DELAYLOAD:setupapi.dll",
     ]
   }
-
-  copy("copy_dbghelp.dll") {
-    sources = [
-      "../build/win/dbghelp_xp/dbghelp.dll",
-    ]
-    outputs = [
-      "$root_out_dir/{{source_file_part}}",
-    ]
-  }
 }
 
 if (is_nacl_nonsfi) {
   # Must be in a config because of how GN orders flags (otherwise -Wall will
   # appear after this, and turn it back on).
   config("nacl_nonsfi_warnings") {
     # file_util_posix.cc contains a function which is not
     # being used by nacl_helper_nonsfi.
     cflags = [ "-Wno-unused-function" ]
   }
@@ skipping 1075 matching lines @@
 
     sources -= [
       "message_loop/message_pump_libevent.cc",
       "strings/string16.cc",
 
       # Not using sha1_win.cc because it may have caused a
       # regression to page cycler moz.
       "sha1_win.cc",
     ]
 
-    # Required for base/stack_trace_win.cc to symbolize correctly.
-    data += [ "$root_build_dir/dbghelp.dll" ]
-
     deps += [ "//base/trace_event/etw_manifest:chrome_events_win" ]
-    if (current_toolchain == default_toolchain) {
-      deps += [ ":copy_dbghelp.dll" ]
-    }
 
     if (is_component_build) {
       # Copy the VS runtime DLLs into the isolate so that they don't have to be
       # preinstalled on the target machine. The debug runtimes have a "d" at
       # the end.
       if (is_debug) {
         vcrt_suffix = "d"
       } else {
         vcrt_suffix = ""
       }
@@ skipping 1142 matching lines @@
 
   # GYP: //base.gyp:base_java_unittest_support
   android_library("base_java_unittest_support") {
     deps = [
       ":base_java",
     ]
     java_files =
         [ "test/android/java/src/org/chromium/base/ContentUriTestUtils.java" ]
   }
 }